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Finding the Fourth Proportional to 6,364.97, 8,783.20 and 3,976.01

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Solution

The fourth proportional to 6,364.97, 8,783.20 and 3,976.01 is: 5,486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,364.97 : 8,783.20 = 3,976.01 : x
  2. Step 2: Convert to fraction form
    6,364.97/8,783.20 = 3,976.01/x
  3. Step 3: Cross multiply
    6,364.97x = 8,783.20 × 3,976.01
  4. Step 4: Simplify right side
    6,364.97x = 34,922,092.95
  5. Step 5: Solve for x
    x = 34,922,092.95/6,364.97
  6. Step 6: Final answer
    x = 5,486.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.